144431033 has 4 divisors (see below), whose sum is σ = 144892788. Its totient is φ = 143969280.

The previous prime is 144430999. The next prime is 144431041. The reversal of 144431033 is 330134441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73736569 + 70694464 = 8587^2 + 8408^2 .

It is a cyclic number.

It is not a de Polignac number, because 144431033 - 2¹⁶ = 144365497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144431633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230408 + ... + 231033.

It is an arithmetic number, because the mean of its divisors is an integer number (36223197).

Almost surely, 2^144431033 is an apocalyptic number.

It is an amenable number.

144431033 is a deficient number, since it is larger than the sum of its proper divisors (461755).

144431033 is an equidigital number, since it uses as much as digits as its factorization.

144431033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461754.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 144431033 is about 12017.9462887800. The cubic root of 144431033 is about 524.6707329152.

Adding to 144431033 its reverse (330134441), we get a palindrome (474565474).

The spelling of 144431033 in words is "one hundred forty-four million, four hundred thirty-one thousand, thirty-three".